One Calculator - scientific calculator
v3.0.22 · 2.6 MB · code 129
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File information
UpdatedMay 21, 2024
PublishedJun 17, 2021
Packageit.onecalculator
Versionv3.0.22 (129)
Size2.6 MB
MD5bcac5d9bb4d013f5ada6cddfb2f57030
Min SDK15
Malware scanTRUSTED
Signature SHA167:AB:60:AF:81:1C:25:44:F0:4C:1A:25:2A:C1:B1:E4:B6:ED:BC:CF
SignerCN=Pierfrancesco Soffritti, OU=none, O=none, L=Mirabello, ST=Ferrara, C=44043
Total downloads100,000
This version100,000
DeveloperPierfrancesco Soffritti
Age ratingEveryone
What's new in v3.0.22
- Improved support for new versions of Android.
- Fixed bug in the widget, for some pro users it wasn't unlocking properly. If the issue is not solved for you, send me an email please.
- Fixed bug in the widget, for some pro users it wasn't unlocking properly. If the issue is not solved for you, send me an email please.
Security scan
TRUSTED
- Developer signature verified 2025-03-11
- Scanned for malware 2024-05-21 04:53:47
- Signature SHA1 67:AB:60:AF:81:1C:25:44:F0:4C:1A:25:2A:C1:B1:E4:B6:ED:BC:CF
- File MD5 bcac5d9bb4d013f5ada6cddfb2f57030
How to install One Calculator - scientific calculator v3.0.22 on Android API 15+
Takes about 2 minutes. You'll need roughly 2.6 MB of free storage.
- Grab it.onecalculator_129.apk — hit the Download button above (2.6 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches bcac5d9bb4d013f5…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find it.onecalculator_129.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read CN=Pierfrancesco Soffritti, OU=none, O=none, L=Mirabello, ST=Ferrara, C=44043. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
- Done — open One Calculator - scientific calculator — tap Open on the install screen, or find the One Calculator - scientific calculator icon in your app drawer.
Common install errors for One Calculator - scientific calculator
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android API 15 or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.